Mary Kate Cornett raced to her boyfriend, Evan Solis’ home after the Ole Miss student learned that the couple was at the center of a viral rumor that she had slept with his father.

The family of University of Mississippi student Mary Kate Cornett has filed a police report for a "malicious, organized and defamatory cyber attack," her dad confirmed on social media.

Mary Kate Cornett and her parents are coming off an emotional 48 hours ... one which her parents said left them feeling helpless -- though a recent development may help the Cornetts take some of their power back.